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/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "file_player_impl.h"
#include "trace.h"
#ifdef WEBRTC_MODULE_UTILITY_VIDEO
#include "cpu_wrapper.h"
#include "frame_scaler.h"
#include "tick_util.h"
#include "video_coder.h"
#endif
// OS independent case insensitive string comparison.
#ifdef WIN32
#define STR_CASE_CMP(x,y) ::_stricmp(x,y)
#else
#define STR_CASE_CMP(x,y) ::strcasecmp(x,y)
#endif
namespace webrtc {
FilePlayer* FilePlayer::CreateFilePlayer(WebRtc_UWord32 instanceID,
FileFormats fileFormat)
{
switch(fileFormat)
{
case kFileFormatWavFile:
case kFileFormatCompressedFile:
case kFileFormatPreencodedFile:
case kFileFormatPcm16kHzFile:
case kFileFormatPcm8kHzFile:
case kFileFormatPcm32kHzFile:
// audio formats
return new FilePlayerImpl(instanceID, fileFormat);
case kFileFormatAviFile:
#ifdef WEBRTC_MODULE_UTILITY_VIDEO
return new VideoFilePlayerImpl(instanceID, fileFormat);
#else
WEBRTC_TRACE(kTraceError, kTraceFile, -1,
"Invalid file format: %d", kFileFormatAviFile);
assert(false);
return NULL;
#endif
}
assert(false);
return NULL;
}
void FilePlayer::DestroyFilePlayer(FilePlayer* player)
{
delete player;
}
FilePlayerImpl::FilePlayerImpl(const WebRtc_UWord32 instanceID,
const FileFormats fileFormat)
: _instanceID(instanceID),
_fileFormat(fileFormat),
_fileModule(*MediaFile::CreateMediaFile(instanceID)),
_decodedLengthInMS(0),
_decodedAudioBuffer(),
_audioDecoder(instanceID),
_codec(),
_numberOf10MsPerFrame(0),
_numberOf10MsInDecoder(0),
_resampler(),
_scaling(1.0)
{
_codec.plfreq = 0;
}
FilePlayerImpl::~FilePlayerImpl()
{
MediaFile::DestroyMediaFile(&_fileModule);
}
WebRtc_Word32 FilePlayerImpl::Frequency() const
{
if(_codec.plfreq == 0)
{
return -1;
}
// Make sure that sample rate is 8,16 or 32 kHz. E.g. WAVE files may have
// other sampling rates.
if(_codec.plfreq == 11000)
{
return 16000;
}
else if(_codec.plfreq == 22000)
{
return 32000;
}
else if(_codec.plfreq == 44000)
{
return 32000;
}
else if(_codec.plfreq == 48000)
{
return 32000;
}
else
{
return _codec.plfreq;
}
}
WebRtc_Word32 FilePlayerImpl::AudioCodec(CodecInst& audioCodec) const
{
audioCodec = _codec;
return 0;
}
WebRtc_Word32 FilePlayerImpl::Get10msAudioFromFile(
WebRtc_Word16* outBuffer,
WebRtc_UWord32& lengthInSamples,
WebRtc_UWord32 frequencyInHz)
{
if(_codec.plfreq == 0)
{
WEBRTC_TRACE(kTraceWarning, kTraceVoice, _instanceID,
"FilePlayerImpl::Get10msAudioFromFile() playing not started!\
codecFreq = %d, wantedFreq = %d",
_codec.plfreq, frequencyInHz);
return -1;
}
AudioFrame unresampledAudioFrame;
if(STR_CASE_CMP(_codec.plname, "L16") == 0)
{
unresampledAudioFrame._frequencyInHz = _codec.plfreq;
// L16 is un-encoded data. Just pull 10 ms.
WebRtc_UWord32 lengthInBytes =
sizeof(unresampledAudioFrame._payloadData);
if (_fileModule.PlayoutAudioData(
(WebRtc_Word8*)unresampledAudioFrame._payloadData,
lengthInBytes) == -1)
{
// End of file reached.
return -1;
}
if(lengthInBytes == 0)
{
lengthInSamples = 0;
return 0;
}
// One sample is two bytes.
unresampledAudioFrame._payloadDataLengthInSamples =
(WebRtc_UWord16)lengthInBytes >> 1;
}else {
// Decode will generate 10 ms of audio data. PlayoutAudioData(..)
// expects a full frame. If the frame size is larger than 10 ms,
// PlayoutAudioData(..) data should be called proportionally less often.
WebRtc_Word16 encodedBuffer[MAX_AUDIO_BUFFER_IN_SAMPLES];
WebRtc_UWord32 encodedLengthInBytes = 0;
if(++_numberOf10MsInDecoder >= _numberOf10MsPerFrame)
{
_numberOf10MsInDecoder = 0;
WebRtc_UWord32 bytesFromFile = sizeof(encodedBuffer);
if (_fileModule.PlayoutAudioData((WebRtc_Word8*)encodedBuffer,
bytesFromFile) == -1)
{
// End of file reached.
return -1;
}
encodedLengthInBytes = bytesFromFile;
}
if(_audioDecoder.Decode(unresampledAudioFrame,frequencyInHz,
(WebRtc_Word8*)encodedBuffer,
encodedLengthInBytes) == -1)
{
return -1;
}
}
int outLen = 0;
if(_resampler.ResetIfNeeded(unresampledAudioFrame._frequencyInHz,
frequencyInHz, kResamplerSynchronous))
{
WEBRTC_TRACE(kTraceWarning, kTraceVoice, _instanceID,
"FilePlayerImpl::Get10msAudioFromFile() unexpected codec");
// New sampling frequency. Update state.
outLen = frequencyInHz / 100;
memset(outBuffer, 0, outLen * sizeof(WebRtc_Word16));
return 0;
}
_resampler.Push(unresampledAudioFrame._payloadData,
unresampledAudioFrame._payloadDataLengthInSamples,
outBuffer,
MAX_AUDIO_BUFFER_IN_SAMPLES,
outLen);
lengthInSamples = outLen;
if(_scaling != 1.0)
{
for (int i = 0;i < outLen; i++)
{
outBuffer[i] = (WebRtc_Word16)(outBuffer[i] * _scaling);
}
}
_decodedLengthInMS += 10;
return 0;
}
WebRtc_Word32 FilePlayerImpl::RegisterModuleFileCallback(FileCallback* callback)
{
return _fileModule.SetModuleFileCallback(callback);
}
WebRtc_Word32 FilePlayerImpl::SetAudioScaling(float scaleFactor)
{
if((scaleFactor >= 0)&&(scaleFactor <= 2.0))
{
_scaling = scaleFactor;
return 0;
}
WEBRTC_TRACE(kTraceWarning, kTraceVoice, _instanceID,
"FilePlayerImpl::SetAudioScaling() not allowed scale factor");
return -1;
}
WebRtc_Word32 FilePlayerImpl::StartPlayingFile(const char* fileName,
bool loop,
WebRtc_UWord32 startPosition,
float volumeScaling,
WebRtc_UWord32 notification,
WebRtc_UWord32 stopPosition,
const CodecInst* codecInst)
{
if (_fileFormat == kFileFormatPcm16kHzFile ||
_fileFormat == kFileFormatPcm8kHzFile||
_fileFormat == kFileFormatPcm32kHzFile )
{
CodecInst codecInstL16;
strncpy(codecInstL16.plname,"L16",32);
codecInstL16.pltype = 93;
codecInstL16.channels = 1;
if (_fileFormat == kFileFormatPcm8kHzFile)
{
codecInstL16.rate = 128000;
codecInstL16.plfreq = 8000;
codecInstL16.pacsize = 80;
} else if(_fileFormat == kFileFormatPcm16kHzFile)
{
codecInstL16.rate = 256000;
codecInstL16.plfreq = 16000;
codecInstL16.pacsize = 160;
}else if(_fileFormat == kFileFormatPcm32kHzFile)
{
codecInstL16.rate = 512000;
codecInstL16.plfreq = 32000;
codecInstL16.pacsize = 160;
} else
{
WEBRTC_TRACE(kTraceError, kTraceVoice, _instanceID,
"FilePlayerImpl::StartPlayingFile() sample frequency\
specifed not supported for PCM format.");
return -1;
}
if (_fileModule.StartPlayingAudioFile(fileName, notification, loop,
_fileFormat, &codecInstL16,
startPosition,
stopPosition) == -1)
{
WEBRTC_TRACE(
kTraceWarning,
kTraceVoice,
_instanceID,
"FilePlayerImpl::StartPlayingFile() failed to initialize file\
%s playout.", fileName);
return -1;
}
SetAudioScaling(volumeScaling);
}else if(_fileFormat == kFileFormatPreencodedFile)
{
if (_fileModule.StartPlayingAudioFile(fileName, notification, loop,
_fileFormat, codecInst) == -1)
{
WEBRTC_TRACE(
kTraceWarning,
kTraceVoice,
_instanceID,
"FilePlayerImpl::StartPlayingPreEncodedFile() failed to\
initialize pre-encoded file %s playout.",
fileName);
return -1;
}
} else
{
CodecInst* no_inst = NULL;
if (_fileModule.StartPlayingAudioFile(fileName, notification, loop,
_fileFormat, no_inst,
startPosition,
stopPosition) == -1)
{
WEBRTC_TRACE(
kTraceWarning,
kTraceVoice,
_instanceID,
"FilePlayerImpl::StartPlayingFile() failed to initialize file\
%s playout.", fileName);
return -1;
}
SetAudioScaling(volumeScaling);
}
if (SetUpAudioDecoder() == -1)
{
StopPlayingFile();
return -1;
}
return 0;
}
WebRtc_Word32 FilePlayerImpl::StartPlayingFile(InStream& sourceStream,
WebRtc_UWord32 startPosition,
float volumeScaling,
WebRtc_UWord32 notification,
WebRtc_UWord32 stopPosition,
const CodecInst* codecInst)
{
if (_fileFormat == kFileFormatPcm16kHzFile ||
_fileFormat == kFileFormatPcm32kHzFile ||
_fileFormat == kFileFormatPcm8kHzFile)
{
CodecInst codecInstL16;
strncpy(codecInstL16.plname,"L16",32);
codecInstL16.pltype = 93;
codecInstL16.channels = 1;
if (_fileFormat == kFileFormatPcm8kHzFile)
{
codecInstL16.rate = 128000;
codecInstL16.plfreq = 8000;
codecInstL16.pacsize = 80;
}else if (_fileFormat == kFileFormatPcm16kHzFile)
{
codecInstL16.rate = 256000;
codecInstL16.plfreq = 16000;
codecInstL16.pacsize = 160;
}else if (_fileFormat == kFileFormatPcm32kHzFile)
{
codecInstL16.rate = 512000;
codecInstL16.plfreq = 32000;
codecInstL16.pacsize = 160;
}else
{
WEBRTC_TRACE(
kTraceError,
kTraceVoice,
_instanceID,
"FilePlayerImpl::StartPlayingFile() sample frequency specifed\
not supported for PCM format.");
return -1;
}
if (_fileModule.StartPlayingAudioStream(sourceStream, notification,
_fileFormat, &codecInstL16,
startPosition,
stopPosition) == -1)
{
WEBRTC_TRACE(
kTraceError,
kTraceVoice,
_instanceID,
"FilePlayerImpl::StartPlayingFile() failed to initialize stream\
playout.");
return -1;
}
}else if(_fileFormat == kFileFormatPreencodedFile)
{
if (_fileModule.StartPlayingAudioStream(sourceStream, notification,
_fileFormat, codecInst) == -1)
{
WEBRTC_TRACE(
kTraceWarning,
kTraceVoice,
_instanceID,
"FilePlayerImpl::StartPlayingFile() failed to initialize stream\
playout.");
return -1;
}
} else {
CodecInst* no_inst = NULL;
if (_fileModule.StartPlayingAudioStream(sourceStream, notification,
_fileFormat, no_inst,
startPosition,
stopPosition) == -1)
{
WEBRTC_TRACE(kTraceError, kTraceVoice, _instanceID,
"FilePlayerImpl::StartPlayingFile() failed to initialize\
stream playout.");
return -1;
}
}
SetAudioScaling(volumeScaling);
if (SetUpAudioDecoder() == -1)
{
StopPlayingFile();
return -1;
}
return 0;
}
WebRtc_Word32 FilePlayerImpl::StopPlayingFile()
{
memset(&_codec, 0, sizeof(CodecInst));
_numberOf10MsPerFrame = 0;
_numberOf10MsInDecoder = 0;
return _fileModule.StopPlaying();
}
bool FilePlayerImpl::IsPlayingFile() const
{
return _fileModule.IsPlaying();
}
WebRtc_Word32 FilePlayerImpl::GetPlayoutPosition(WebRtc_UWord32& durationMs)
{
return _fileModule.PlayoutPositionMs(durationMs);
}
WebRtc_Word32 FilePlayerImpl::SetUpAudioDecoder()
{
if ((_fileModule.codec_info(_codec) == -1))
{
WEBRTC_TRACE(
kTraceWarning,
kTraceVoice,
_instanceID,
"FilePlayerImpl::StartPlayingFile() failed to retrieve Codec info\
of file data.");
return -1;
}
if( STR_CASE_CMP(_codec.plname, "L16") != 0 &&
_audioDecoder.SetDecodeCodec(_codec,AMRFileStorage) == -1)
{
WEBRTC_TRACE(
kTraceWarning,
kTraceVoice,
_instanceID,
"FilePlayerImpl::StartPlayingFile() codec %s not supported",
_codec.plname);
return -1;
}
_numberOf10MsPerFrame = _codec.pacsize / (_codec.plfreq / 100);
_numberOf10MsInDecoder = 0;
return 0;
}
#ifdef WEBRTC_MODULE_UTILITY_VIDEO
VideoFilePlayerImpl::VideoFilePlayerImpl(WebRtc_UWord32 instanceID,
FileFormats fileFormat)
: FilePlayerImpl(instanceID,fileFormat),
_videoDecoder(*new VideoCoder(instanceID)),
video_codec_info_(),
_decodedVideoFrames(0),
_encodedData(*new EncodedVideoData()),
_frameScaler(*new FrameScaler()),
_critSec(CriticalSectionWrapper::CreateCriticalSection()),
_startTime(),
_accumulatedRenderTimeMs(0),
_frameLengthMS(0),
_numberOfFramesRead(0),
_videoOnly(false)
{
memset(&video_codec_info_, 0, sizeof(video_codec_info_));
}
VideoFilePlayerImpl::~VideoFilePlayerImpl()
{
delete _critSec;
delete &_frameScaler;
delete &_videoDecoder;
delete &_encodedData;
}
WebRtc_Word32 VideoFilePlayerImpl::StartPlayingVideoFile(
const char* fileName,
bool loop,
bool videoOnly)
{
CriticalSectionScoped lock( _critSec);
if(_fileModule.StartPlayingVideoFile(fileName, loop, videoOnly,
_fileFormat) != 0)
{
return -1;
}
_decodedVideoFrames = 0;
_accumulatedRenderTimeMs = 0;
_frameLengthMS = 0;
_numberOfFramesRead = 0;
_videoOnly = videoOnly;
// Set up video_codec_info_ according to file,
if(SetUpVideoDecoder() != 0)
{
StopPlayingFile();
return -1;
}
if(!videoOnly)
{
// Set up _codec according to file,
if(SetUpAudioDecoder() != 0)
{
StopPlayingFile();
return -1;
}
}
return 0;
}
WebRtc_Word32 VideoFilePlayerImpl::StopPlayingFile()
{
CriticalSectionScoped lock( _critSec);
_decodedVideoFrames = 0;
_videoDecoder.ResetDecoder();
return FilePlayerImpl::StopPlayingFile();
}
WebRtc_Word32 VideoFilePlayerImpl::GetVideoFromFile(VideoFrame& videoFrame,
WebRtc_UWord32 outWidth,
WebRtc_UWord32 outHeight)
{
CriticalSectionScoped lock( _critSec);
WebRtc_Word32 retVal = GetVideoFromFile(videoFrame);
if(retVal != 0)
{
return retVal;
}
if( videoFrame.Length() > 0)
{
retVal = _frameScaler.ResizeFrameIfNeeded(&videoFrame, outWidth,
outHeight);
}
return retVal;
}
WebRtc_Word32 VideoFilePlayerImpl::GetVideoFromFile(VideoFrame& videoFrame)
{
CriticalSectionScoped lock( _critSec);
// No new video data read from file.
if(_encodedData.payloadSize == 0)
{
videoFrame.SetLength(0);
return -1;
}
WebRtc_Word32 retVal = 0;
if(strncmp(video_codec_info_.plName, "I420", 5) == 0)
{
videoFrame.CopyFrame(_encodedData.payloadSize,_encodedData.payloadData);
videoFrame.SetLength(_encodedData.payloadSize);
videoFrame.SetWidth(video_codec_info_.width);
videoFrame.SetHeight(video_codec_info_.height);
}else
{
// Set the timestamp manually since there is no timestamp in the file.
// Update timestam according to 90 kHz stream.
_encodedData.timeStamp += (90000 / video_codec_info_.maxFramerate);
retVal = _videoDecoder.Decode(videoFrame, _encodedData);
}
WebRtc_Word64 renderTimeMs = TickTime::MillisecondTimestamp();
videoFrame.SetRenderTime(renderTimeMs);
// Indicate that the current frame in the encoded buffer is old/has
// already been read.
_encodedData.payloadSize = 0;
if( retVal == 0)
{
_decodedVideoFrames++;
}
return retVal;
}
WebRtc_Word32 VideoFilePlayerImpl::video_codec_info(
VideoCodec& videoCodec) const
{
if(video_codec_info_.plName[0] == 0)
{
return -1;
}
memcpy(&videoCodec, &video_codec_info_, sizeof(VideoCodec));
return 0;
}
WebRtc_Word32 VideoFilePlayerImpl::TimeUntilNextVideoFrame()
{
if(_fileFormat != kFileFormatAviFile)
{
return -1;
}
if(!_fileModule.IsPlaying())
{
return -1;
}
if(_encodedData.payloadSize <= 0)
{
// Read next frame from file.
CriticalSectionScoped lock( _critSec);
if(_fileFormat == kFileFormatAviFile)
{
// Get next video frame
WebRtc_UWord32 encodedBufferLengthInBytes = _encodedData.bufferSize;
if(_fileModule.PlayoutAVIVideoData(
reinterpret_cast< WebRtc_Word8*>(_encodedData.payloadData),
encodedBufferLengthInBytes) != 0)
{
WEBRTC_TRACE(
kTraceWarning,
kTraceVideo,
_instanceID,
"FilePlayerImpl::TimeUntilNextVideoFrame() error reading\
video data");
return -1;
}
_encodedData.payloadSize = encodedBufferLengthInBytes;
_encodedData.codec = video_codec_info_.codecType;
_numberOfFramesRead++;
if(_accumulatedRenderTimeMs == 0)
{
_startTime = TickTime::Now();
// This if-statement should only trigger once.
_accumulatedRenderTimeMs = 1;
} else {
// A full seconds worth of frames have been read.
if(_numberOfFramesRead % video_codec_info_.maxFramerate == 0)
{
// Frame rate is in frames per seconds. Frame length is
// calculated as an integer division which means it may
// be rounded down. Compensate for this every second.
WebRtc_UWord32 rest = 1000%_frameLengthMS;
_accumulatedRenderTimeMs += rest;
}
_accumulatedRenderTimeMs += _frameLengthMS;
}
}
}
WebRtc_Word64 timeToNextFrame;
if(_videoOnly)
{
timeToNextFrame = _accumulatedRenderTimeMs -
(TickTime::Now() - _startTime).Milliseconds();
} else {
// Synchronize with the audio stream instead of system clock.
timeToNextFrame = _accumulatedRenderTimeMs - _decodedLengthInMS;
}
if(timeToNextFrame < 0)
{
return 0;
} else if(timeToNextFrame > 0x0fffffff)
{
// Wraparound or audio stream has gone to far ahead of the video stream.
return -1;
}
return static_cast<WebRtc_Word32>(timeToNextFrame);
}
WebRtc_Word32 VideoFilePlayerImpl::SetUpVideoDecoder()
{
if (_fileModule.VideoCodecInst(video_codec_info_) != 0)
{
WEBRTC_TRACE(
kTraceWarning,
kTraceVideo,
_instanceID,
"FilePlayerImpl::SetVideoDecoder() failed to retrieve Codec info of\
file data.");
return -1;
}
WebRtc_Word32 useNumberOfCores = 1;
if(_videoDecoder.SetDecodeCodec(video_codec_info_, useNumberOfCores) != 0)
{
WEBRTC_TRACE(
kTraceWarning,
kTraceVideo,
_instanceID,
"FilePlayerImpl::SetUpVideoDecoder() codec %s not supported",
video_codec_info_.plName);
return -1;
}
_frameLengthMS = 1000/video_codec_info_.maxFramerate;
// Size of unencoded data (I420) should be the largest possible frame size
// in a file.
const WebRtc_UWord32 KReadBufferSize = 3 * video_codec_info_.width *
video_codec_info_.height / 2;
_encodedData.VerifyAndAllocate(KReadBufferSize);
_encodedData.encodedHeight = video_codec_info_.height;
_encodedData.encodedWidth = video_codec_info_.width;
_encodedData.payloadType = video_codec_info_.plType;
_encodedData.timeStamp = 0;
return 0;
}
#endif // WEBRTC_MODULE_UTILITY_VIDEO
} // namespace webrtc